Patents Assigned to Robert
  • Patent number: 4920602
    Abstract: The washer apparatus for washing the window of a motor vehicle comprises a wiper blade oscillating over the window sitting on a hollow shaft, which is provided with at least one nozzle directed at the window to be washed. A washer fluid feed occurs to the nozzle through a structural element in a shaft passage of the hollow shaft, whose one downstream end portion is rigidly attached with the hollow shaft. A particularly trouble-free and economical washer apparatus can be attained when the other upstream end portion of the structural element is held fixed behind an upstream opening of the shaft passage and the structural element is at least partially made from a pliable material.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: May 1, 1990
    Assignee: Robert Bosch GmbH
    Inventor: Gerd Kuehbauch
  • Patent number: 4922143
    Abstract: A linear unit comprises carriage which is arranged longitudinally displaceably in a holder and is driven by a linear motor, the rotor of which is designed as a flexible strip with a tooth structure consisting of magnetic metal. The strip is fixed self-supportingly on the carriage at its two ends and is guided on both sides on the surfaces of the stators of the linear motor bounding the pole gap.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: May 1, 1990
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Gosdowski, Andreas Kettner
  • Patent number: 4921007
    Abstract: A suction refill valve for a master brake cylinder which is suitable for use in brake systems having brake slip control. The refill valve has a sealing element, made from an elastic material, which is annular and is acted upon on virtually all sides by the pressure arising in the work chamber of the brake cylinder. In combination with a valve opening embodied as an annular gap, the suction refill valve can open at relatively low force, even when the brake pressure is high.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: May 1, 1990
    Assignee: Robert Bosch GmbH
    Inventor: Wilhelm Zirps
  • Patent number: 4921314
    Abstract: An anti-locking brake control system for a motor vehicle comprises wheel speed sensors for determining the speeds of the individual vehicle wheels, an evaluation circuit which receives the wheels speed signals and generates brake pressure control signals, and a brake pressure control device responsive to the brake pressure control signals for controlling the brake pressure applied to the wheels. The evaluation (processing) circuit includes a brake pressure control unit which operates in such a manner that, after brake pressure decays, the brake pressure is first increased in a timed build-up with reference to the brake pressure build-up in a preceding control cycle, and thereafter the brake pressure is further increased by a sequence of pulses until an instability is again detected.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: May 1, 1990
    Assignee: Robert Bosch GmbH
    Inventors: Volker Braschel, Dieter Seitz, Jochen Schafer
  • Patent number: 4921124
    Abstract: A pressure equalizing element for an electronic device enclosure, e.g. for a control device under the hood of a vehicle, features a water-tight but air-transmitting region (21) which equalizes pressure between the interior airspace of the enclosure and ambient airspace. The element preferably includes a porous PTFE foil element which is bowed so that water will not pool on it and clog the air pores. Thus, it will be operative, and can be installed, in any desired orientation. The foil is protected against puncture by surrounding support elements of metal and/or plastic and is adapted to be automatically mass-produced and tested prior to installation.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: May 1, 1990
    Assignee: Robert Bosch GmbH
    Inventors: Kurt Stammler, Lothar Ruttkowski
  • Patent number: 4920333
    Abstract: An alarm system for monitoring an entrance/exit from a premises is provided with a deadbolt switch, timing mechanism, alarm circuitry and an alarm indicator. The alarm system is activated when the deadbolt is unlocked. The alarm circuitry determines if the unlocking of the deadbolt was authorized or unauthorized. If the unlocking was unauthorized, the alarm indicator is activated. If the unlocking was authorized, the timing mechanism is activated. If the deadbolt is not relocked within the time period preset into the timing mechanism, the alarm indicator is activated. The timing mechanism may be reset by authorized persons to allow the deadbolt to remain open for additional time periods, one period at a time.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: April 24, 1990
    Assignee: Robert Barr
    Inventors: Robert Barr, Joel A. Fletcher
  • Patent number: 4919359
    Abstract: An end cap is releasably mounted on the end of a cylindrical hollow tube to form a reusable cylindrical yarn carrier or winding tube which carries a filamentary or fibrous yarn thereon. When the yarn carrier has been emptied, the end cap is loosened from the hollow tube, and the residual fibers or filaments vacuumed or stripped away.The hollow tube is formed from a shell of steel, aluminum, lightweight metallic alloys or a polymeric material reinforced with fibers of aramids, carbon, ceramics, glass, or hybrids thereof. The shell is of a prescribed length and a reduced wall thickness in the range of 0.062-0.200 inches. A cylindrical insert of another material is secured to the inner surface of the shell adjacent the marginal end portions thereof to receive the threaded end cap.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: April 24, 1990
    Assignees: Stephen S. Powel, Robert J. Darby
    Inventors: Stephen S. Powel, Robert J. Darby
  • Patent number: 4919497
    Abstract: A magnetic valve with reversible flow for use in anti-skid brake systems (ABS) has an armature displaceably supported in a valve housing within a control coil. A sealing element is moved by the armature and a stationary valve seat is associated with the sealing element. The armature includes a bottom which communicates via openings with an inflow region including the sealing element, a sealing element holder, and a valve body. The sealing element formed as a sealing ball and the sealing element holder formed as a perforated disk are embodied such that within predetermined stroke and flow ranges, an aspiration effect due to the flowing medium ensues, and a retaining element provided in the form of a permanent magnet acts upon the armature and the retaining element is overcome upon electrical triggering of the magnetic valve, resulting in a large flow cross section for normal braking, and a reduced flow cross section in ABS operation.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: April 24, 1990
    Assignee: Robert Bosch GmbH
    Inventor: Guenter Kaes
  • Patent number: 4919286
    Abstract: An improved container and closure combination is described. The container has a variety of protrusions from its neck. The closure consists of a cap cover, a tear strip, a double-hinge, and an anchor band. The improvements of the closure include providing for a flexible valve seal, an easier removal apparatus for the tear strip, a self-aligning cap and a double lock bead system.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: April 24, 1990
    Assignee: Robert Linkletter Assoc.
    Inventor: Albert J. Agbay, Sr.
  • Patent number: 4918868
    Abstract: An eccentric grinder having a small construction in the axial direction comprises an eccentric (15), which is driven so as to rotate, and a grinding plate (16) which is rotatably supported in the eccentric (15) and which can be set in rotation around its axis of rotation in one or the other rotating direction via rotating rings (26, 27), which are rigidly connected with the grinding plate (16), and via rolling rings (30, 31), which are arranged at the grinder housing (10), in order to change its grinding action. The selection of the rotating direction is determined by means of a manual switching device (38). For this purpose, the rolling rings (30, 31) are held at the grinder housing (10) so as to be rotatable and are in continuous engagement with the rotating rings (25, 26) fastened at the grinding plate (16).
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: April 24, 1990
    Assignee: Robert Bosch GmbH
    Inventors: Walter Barth, Karl-Heinz Braunbach, Manfred Stabler
  • Patent number: 4919105
    Abstract: A device for improving a fuel-air mixture distribution in multi-cylinder internal combustion engines, in which a mixture forming device (carburetor, central injection unit) must supply more than one cylinder. By means of the device a quantitatively and qualitatively uniform distribution of the air-fuel mixture to the various cylinders is effectively improved. This more-uniform distribution of the mixture is obtained by combining a plurality of nail-like protrusions and a guide wall downstream of the fuel-air mixture device at which an effective transfer of heat produced by a heating element takes place, with which the flow condition are varied prior to the division of the intake tube into intake line arms. It is particularly effective to dispose the device at the "hot spot" of downdraft intake tubes in multi-cylinder engines.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: April 24, 1990
    Assignee: Robert Bosch GmbH
    Inventor: Heinz Duelli
  • Patent number: 4919492
    Abstract: A multiple-circuit brake system for motor vehicles in which a multiple-circuit braking value transducer is embodied partially electrically and partially as a pneumatic control valve and is intended for triggering pressure control valves, the wheel brake cylinders being disposed following these pressure control valves. One pressure-medium reservoir is associated with each pressure control valve, and the controlling energy for each of these pressure control valves is drawn from the pressure-medium reservoir associated with that valve. In the pneumatic brake circuit (I), a further pressure-medium reservoir is provided preceding the braking value transducer, as a result of which it is possible, with the aid of two-way check valves, to actuate the wheel brake cylinders with the pneumatic brake circuit (I) whenever the electrical brake circuits (II, III) have failed.
    Type: Grant
    Filed: June 3, 1983
    Date of Patent: April 24, 1990
    Assignees: SAAB-Scania AB, Robert Bosch GmbH
    Inventors: Hakan Samuelson, Eric Thoms, Ingolf Grauel, Werner Stumpe, Franz Maurer
  • Patent number: 4917293
    Abstract: A heat and/or air conditioning apparatus for a motor vehicle comprising control means and a first humidity sensor located in the interior of the motor vehicle, a second temperature sensor and a second humidity sensor located outside of the vehicle, intake duct means for supplying outside air to the vehicle interior, at least two discharge ducts located in the vehicle interior and of which at least one opens in the vicinity of a vehicle window, and a blower.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: April 17, 1990
    Assignee: Robert Bosch GmbH
    Inventors: Horst Fedter, Werner Grunwald, Peter Nolting
  • Patent number: 4918289
    Abstract: A portable electric hair dryer wherein the tubular part of the housing has an inlet for atmospheric air and an outlet for heated air. The housing confines an electric motor for an impeller which induces the flow of air from the inlet toward the outlet, and an electric heater for the flow of air. The motor is surrounded by annular first insulating carrier of electric contacts which are connectable to an energy source, and the heater has a second insulating carrier for contacts which are separably connectable with the contacts on the first carrier and serve to supply energy to the heater. The first carrier has surfaces which engage adjacent surfaces on a stationary air guide having a socket for the motor behind the first carrier. The contacts on the first carrier can include flat plugs which are receivable between pairs of elastic prongs constituting the respective contacts on the second carrier, or vice versa.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: April 17, 1990
    Assignee: Robert Krups Stiftung & Co. Kg.
    Inventors: Heinz-Jurgen Ohlsen, Hans-Dieter Poweleit
  • Patent number: 4918389
    Abstract: Misfiring in internal combustion engines is detected by detecting the voltage induced in the primary winding of the ignition coil, and comparing it to a reference voltage which represents normal firing. The reference voltage preferably has a predetermined magnitude and a predetermined duration and the detected and reference voltage are compared so as to detect when the magnitude of the detected voltage falls below the predetermined magnitude before the end of the duration.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: April 17, 1990
    Assignee: Robert Bosch GmbH
    Inventors: Richard Schleupen, Christian Zimmermann, Arnd-Matthias Langner
  • Patent number: 4917355
    Abstract: An improved stop valve eliminates the need for O-rings and washers. The valve contains a one piece unitary stem formed of resilient compressible plastic material. The stem contains three separate seals and fits within, extends through and is moveable in a valve sleeve. Operating the handle moves the stem axially between a first axial position in which the valve is fully open and a second axial position in which the valve is fully closed. The first seal is operative to provide a seal responsive to said stem being in the first axial position, the second seal means is operative to provide a seal responsive to said stem being in the second axial position, and the third seal is operative to seal in all axial positions.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: April 17, 1990
    Assignee: Robert Manufacturing Company
    Inventors: Richard C. G. Dark, William L. Wright
  • Patent number: 4918535
    Abstract: A TV display, typically derived from a high-intensity miniature cathode ray tube (1) and available on a projection screen (8) thereof is enlarged by an optical lens system and, as enlarged, projected behind a viewing screen (10) via an optical folded system. The specific arrangement of the TV tube (1) and one or more deflection mirrors (3, 4, 5) forming the optical folded system towards the viewing screen (10) permit flat and light-weight construction of the projection system.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: April 17, 1990
    Assignee: Robert Bosch GmbH
    Inventors: Dietrich Grabis, Peter Knoll
  • Patent number: 4918694
    Abstract: In a system for correction of digital audio data, read out from a magnetic tape in code blocks each containing a number of data words together with first check words and a number of code blocks together form a data field for the columns of which second check words are formed and recorded and wherein audio data are recorded in first and second recordings of each code block, the data read out from the tape are first provided with corrections and error flags for the presence of uncorrectable words by means of the first check words and thereafter the data words are subject to selection of the largest number of error free code blocks from the first and second recordings for submission to error correction with reference to the data field second check words.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: April 17, 1990
    Assignee: Robert Bosch GmbH
    Inventor: Hannfried Preissler
  • Patent number: 4917192
    Abstract: A method is provided for securing a horseshoe to a hoof by wrapping a curable resin coated sheet material around an applied horseshoe and at least a portion of the hoof after the cure has been initiated, such that the cured resin coated sheet material secures the horseshoe to the hoof. An apparatus is also provided for securing a horseshoe according to the method.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: April 17, 1990
    Assignee: Robert L. Young
    Inventor: Samuel A. Monticello
  • Patent number: D307645
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: May 1, 1990
    Assignee: Robert Krups Stiftung & Co. KG
    Inventors: Gotthard C. Mahlich, Florian Sieffert